BI308 Lecture Notes - Lecture 18: Threshold Model, Reproductive Synchrony
Document Summary
Benefits to male polyandrous: issue when females are in polyandrous by males, females are harassed, so females may mate with them. 2)also males may be nicer to offspring (regardless if its theirs or not) By mating with many males, females may be able to avoid falling into a situation where males kill their offspring, such as some species of birds. Behaviour of males to females they were nicer to offspring if the males have had a relationship with the female before. Positive = female may use multiple mating to gain parental care of many males. Males provide parental care in portion to how many times its mated: adequate sperm to make sure all her eggs are fertilized. Benefits of monogamy: arise from conflict between males and females. May be in the females interest to enforce monogamy example: beetles feed the carcass of the males to grub .
